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    • 1. 发明申请
    • BIODEGRADABLE PROLINE-BASED POLYMERS
    • 生物可降解的基于聚合物的聚合物
    • WO2010045241A1
    • 2010-04-22
    • PCT/US2009/060521
    • 2009-10-13
    • MEDIVAS, LLCTURNELL, William, G.GOMURASHVILI, Zaza, D.ANDERL, Jeffrey, Neil
    • TURNELL, William, G.GOMURASHVILI, Zaza, D.ANDERL, Jeffrey, Neil
    • A61L15/16
    • A61K9/5153A61K31/00C08G69/44C08L77/12
    • The invention provides sequential poly(ester amide)s derived from Proline and that are synthesized by a two-step method, involving a final thermal polyesterification reaction. Molecular weights of polymers prepared by this method are from 14,000 Da to about 77,000Da.l When invention proline-based PEAs were thermally characterized,, their glass transition temperatures were lower than other alpha-amino acid based poly(ester amides) due to lack of internal hydrogen bonding. These Proline-based PEAs assemble as nano-particles in aqueous solutions and form complexes with various cations and biologies, including hydrophobic small molecule drugs and biologies. Therefore the invention Proline- based PEAs are useful for drug delivery applications requiring a polymer with a molecular weight in the range from 14,000 Da to about 77,000Da and for fabrication of nanoparticles for delivery of hydrophobic drugs.
    • 本发明提供了源自脯氨酸的顺序聚(酯酰胺),并且通过两步法合成,涉及最终的热聚酯化反应。 通过该方法制备的聚合物的分子量为14,000Da至约77,000Da。当本发明的脯氨酸基PEA被热表征时,由于缺乏,其玻璃化转变温度低于其它基于α-氨基酸的聚(酯酰胺) 的内部氢键。 这些基于脯氨酸的PEAs在水溶液中作为纳米颗粒组装,并与各种阳离子和生物制品形成复合物,包括疏水性小分子药物和生物制剂。 因此,本发明的基于脯氨酸的PEAs可用于需要分子量范围为14,000Da至约77,000Da的聚合物并用于制备用于递送疏水性药物的纳米颗粒的药物递送应用。